[JoaoCostaIFG]

Apps like the Microsoft authenticator and freeotp+ allow you to backup your codes. With freeotp+, you can export the codes as a json file and import them in another phone in case something happens. With the Microsoft one, you save the codes in the cloud (your Microsoft account).

[Avamander]

Are there any good and not ugly TOTP apps on iOS that have export/import functionality?